ALEXANDRIA, Va., Oct. 28 -- United States Patent no. 12,449,081, issued on Oct. 21, was assigned to COSMO KOKI Co. LTD. (Tokyo).
"Boring machine" was invented by Satoshi Tamada (Tokyo).
According to the abstract* released by the U.S. Patent & Trademark Office: "A boring machine for boring a part of a fluid pipe in an uninterrupted flow state, includes: a shaft member having a leading end to which a cutter is attached; a drive mechanism configured to rotate the cutter and the shaft member around the shaft of the shaft member; and a forward and backward moving operation mechanism configured to move the cutter and the shaft member forward and backward in the axial direction of the shaft member by a handle that is manually rotated. The forwar...